The research goal was not only to achieve understanding of the current condition of IFLs but also to measure their loss between 2000 and 2013 and to analyse the various factors contributing to their destruction. The analysis of satellite images demonstrated that there are three key factors contributing to the reduction in the area of IFLs, including loss resulting from fragmentation. These are: logging and building of roads for timber transportation; forest fires; mining and prospecting, development of infrastructure and transportation of minerals, oil and gas.